Seminarium Kosmologia i Fizyka Cząstek

After briefly reviewing the model independent phenomenological features of the di-photon excess observed by both ATLAS and CMS we investigate its consequences for model building. Under the hypothesis of having observed a scalar resonance produced in s-channel at 750 GeV, we show how naturalness can be a powerful organizing principle to compare the different classes of models that can fit the di-photon excess. On the other hand we comment on the intriguing possibility to relate the scalar resonance to Dark Matter portals.